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Javascript中调用url 取到action中的Json数据

2015-04-08 17:17 417 查看
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

<title>Insert title here</title>

<script type="text/javascript">

function getData() {

var xmlhttp;

if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari

xmlhttp = new XMLHttpRequest();

} else {// code for IE6, IE5

xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");

}

xmlhttp.onreadystatechange = function() {

if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {

document.getElementById("myDiv").innerHTML = xmlhttp.responseText;

}

}

xmlhttp.open(

"GET",

"${pageContext.request.contextPath}/quality/farm_farmList.action",

true);

xmlhttp.send();

}

</script>

</head>

<body>

<h2>AJAX</h2>

<button type="button" onclick="getData()">请求数据</button>

<div id="myDiv"></div>

</body>

</html>
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